Commit 99d093d1 authored by Yinghai Lu's avatar Yinghai Lu Committed by Ingo Molnar

x86: use NR_IRQS_LEGACY

Impact: cleanup

Introduce NR_IRQS_LEGACY instead of hard coded number.
Signed-off-by: default avatarYinghai Lu <yinghai@kernel.org>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 0b8f1efa
......@@ -101,6 +101,8 @@
#define LAST_VM86_IRQ 15
#define invalid_vm86_irq(irq) ((irq) < 3 || (irq) > 15)
#define NR_IRQS_LEGACY 16
#if defined(CONFIG_X86_IO_APIC) && !defined(CONFIG_X86_VOYAGER)
#ifndef CONFIG_SPARSE_IRQ
......
......@@ -847,7 +847,7 @@ EXPORT_SYMBOL(IO_APIC_get_PCI_irq_vector);
*/
static int EISA_ELCR(unsigned int irq)
{
if (irq < 16) {
if (irq < NR_IRQS_LEGACY) {
unsigned int port = 0x4d0 + (irq >> 3);
return (inb(port) >> (irq & 7)) & 1;
}
......@@ -1388,7 +1388,7 @@ static void setup_IO_APIC_irq(int apic, int pin, unsigned int irq,
}
ioapic_register_intr(irq, trigger);
if (irq < 16)
if (irq < NR_IRQS_LEGACY)
disable_8259A_irq(irq);
ioapic_write_entry(apic, pin, entry);
......@@ -2080,7 +2080,7 @@ static unsigned int startup_ioapic_irq(unsigned int irq)
struct irq_cfg *cfg;
spin_lock_irqsave(&ioapic_lock, flags);
if (irq < 16) {
if (irq < NR_IRQS_LEGACY) {
disable_8259A_irq(irq);
if (i8259A_irq_pending(irq))
was_pending = 1;
......@@ -2504,7 +2504,7 @@ static inline void init_IO_APIC_traps(void)
* so default to an old-fashioned 8259
* interrupt if we can..
*/
if (irq < 16)
if (irq < NR_IRQS_LEGACY)
make_8259A_irq(irq);
else
/* Strange. Oh, well.. */
......@@ -3794,7 +3794,7 @@ int io_apic_set_pci_routing (int ioapic, int pin, int irq, int triggering, int p
/*
* IRQs < 16 are already in the irq_2_pin[] map
*/
if (irq >= 16) {
if (irq >= NR_IRQS_LEGACY) {
cfg = desc->chip_data;
add_pin_to_irq_cpu(irq, cpu, ioapic, pin);
}
......
......@@ -68,7 +68,7 @@ void __init init_ISA_irqs (void)
/*
* 16 old-style INTA-cycle interrupts:
*/
for (i = 0; i < 16; i++) {
for (i = 0; i < NR_IRQS_LEGACY; i++) {
struct irq_desc *desc = irq_to_desc(i);
desc->status = IRQ_DISABLED;
......
......@@ -142,7 +142,7 @@ void __init init_ISA_irqs(void)
init_bsp_APIC();
init_8259A(0);
for (i = 0; i < 16; i++) {
for (i = 0; i < NR_IRQS_LEGACY; i++) {
struct irq_desc *desc = irq_to_desc(i);
desc->status = IRQ_DISABLED;
......
......@@ -117,8 +117,8 @@ static DEFINE_SPINLOCK(sparse_irq_lock);
struct irq_desc *irq_desc_ptrs[NR_IRQS] __read_mostly;
static struct irq_desc irq_desc_legacy[16] __cacheline_aligned_in_smp = {
[0 ... 15] = {
static struct irq_desc irq_desc_legacy[NR_IRQS_LEGACY] __cacheline_aligned_in_smp = {
[0 ... NR_IRQS_LEGACY-1] = {
.irq = -1,
.status = IRQ_DISABLED,
.chip = &no_irq_chip,
......@@ -132,7 +132,7 @@ static struct irq_desc irq_desc_legacy[16] __cacheline_aligned_in_smp = {
};
/* FIXME: use bootmem alloc ...*/
static unsigned int kstat_irqs_legacy[16][NR_CPUS];
static unsigned int kstat_irqs_legacy[NR_IRQS_LEGACY][NR_CPUS];
void __init early_irq_init(void)
{
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment